/*
 * Copyright (c) Cliff Rowley, James Deakin
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of the <ORGANIZATION> nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import acid.events.IEventDispatcher;

class acid.events.EventDispatcher
	implements IEventDispatcher
{
	
	private var __eventListeners:Object;
	
	public function EventDispatcher()
	{
		__eventListeners = {};
	}
	
	public function addEventListener(type:String, fn:Function):Void
	{
		if (__eventListeners[type] == null) {
			__eventListeners[type] = [fn];
		}
		else {
			__eventListeners[type].push(fn);
		}
	}
	
	public function removeEventListener(type:String, fn:Function):Void
	{
		if (__eventListeners[type] != null) {
			var arr:Array = __eventListeners[type];
			for (var i:Number = 0; i < arr.length; i++) {
				if (arr[i] == fn) {
					__eventListeners[type].splice(i, 1);
					break;
				}
			}
		}
	}
	
	public function removeEventListeners(type:String):Void
	{
		if (__eventListeners[type] != null) {
			delete __eventListeners[type];
		}
	}
	
	public function removeAllEventListeners():Void
	{
		__eventListeners = {};
	}
	
	public function dispatchEvent(type:String, args:Object):Void
	{
		for (var p:String in __eventListeners) {
			var arr:Array = __eventListeners[p];
			for (var i:Number = 0; i < arr.length; i++) {
				arr[i](type, args);
			}
		}
	}
	
	
}